Agent skill

Assess Eip

by ethereum in ethereum/execution-specs

Assess an EIP's implementation complexity and scope. An agent skill from ethereum/execution-specs.

CC0-1.0Auto-check passed

Install Assess Eip

skills CLI
$ npx skills add ethereum/execution-specs --skill assess-eip -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ethereum/execution-specs assess-eip --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ethereum/execution-specs.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/assess-eip .claude/skills/assess-eip && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
assess-eip
GitHub stars
1.2k
Token cost
~535 tokens
SKILL.md length
246 words
Files
1
Skills in repo
13
Repo updated
First seen
Licence
CC0-1.0

At a glance

Assess an EIP's implementation complexity and scope. An agent skill from ethereum/execution-specs.

  • Works in 5 steps: Classify the Change Type(s) → Estimate Scope → Identify Required Test Categories → …
  • SKILL.md covers 1. Classify the Change Type(s), 2. Estimate Scope, 3. Identify Required Test… and 4. Identify Prior Art, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Assess Eip is an agent skill from ethereum/execution-specs. Assess an EIP's implementation complexity and scope.

Its SKILL.md is about 540 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Specification for the Execution Layer. Tracking network upgrades. The licence is CC0-1.0.

Example prompts

  • “/assess-eip”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Classify the Change Type(s)
  2. Estimate Scope
  3. Identify Required Test Categories
  4. Identify Prior Art
  5. Output Structured Assessment

What it can do on your machine

Read from SKILL.md and the folder at commit 3d544d7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Assess Eip loads about 535 tokens when it runs. Until then it costs about 16 tokens; SKILL.md has 246 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~16
When it runs · the whole SKILL.md, loaded when a task matches
~535

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ethereum/execution-specs at commit 3d544d7, republished under its CC0-1.0 licence (© ethereum). 246 words, ~535 tokens.

Download SKILL.mdSave it as .claude/skills/assess-eip/SKILL.md (or your agent's skills folder).
name
assess-eip
description
Assess an EIP's implementation complexity and scope.

Assess EIP

Structured assessment of EIP implementation complexity. When invoked with an EIP number or description, perform the following analysis.

1. Classify the Change Type(s)

  • New opcode — requires: vm/instructions/, gas cost, op_implementation registration
  • New precompile — requires: vm/precompiled_contracts/, address constant, mapping, gas cost
  • New transaction type — requires: transactions.py, fork.py validation, exception types
  • System contract — requires: contract deployment in genesis, state handling
  • Block header/body field — requires: blocks.py, RLP encoding changes
  • Gas cost change — requires: vm/gas.py constant updates, possibly interpreter changes
  • Execution layer request — requires: request handling in requests.py
  • Constraint change — requires: validation logic in fork.py or blocks.py

2. Estimate Scope

  • Small (1-2 files in spec, 1 test file): gas repricing, simple constraint
  • Medium (3-5 files in spec, 2-3 test files): new opcode, new precompile
  • Large (5-10 files in spec, 5+ test files): new tx type, new system contract
  • XL (10+ files, multi-EIP umbrella): VM overhaul (e.g., EOF)

3. Identify Required Test Categories

Map the change types to the relevant EIPChecklist categories (from execution_testing.checklists.eip_checklist). List the checklist items that need to be covered.

4. Identify Prior Art

Find similar completed EIPs in the repo to use as implementation reference:

  • New opcode → check recent opcode additions in latest fork's vm/instructions/
  • New precompile → tests/osaka/eip7951_p256verify_precompiles/
  • New tx type → tests/prague/eip7702_set_code_tx/
  • Gas changes → check vm/gas.py diffs between recent forks

5. Output Structured Assessment

Produce a summary with:

  • Change types identified
  • Estimated scope (Small / Medium / Large / XL)
  • Spec files to modify (with paths)
  • Test files to create
  • EIPChecklist categories to cover
  • Reference implementations to follow

© ethereum, CC0-1.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/assess-eip of ethereum/execution-specs.

Open the folder on GitHubat commit 3d544d7

Compare with similar skills

Assess Eip next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Assess Eip compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Assess Eip this skillethereum/execution-specs1.2k—~535Automated safety check: PassCC0-1.0
Acreadiness Assessgithub/awesome-copilot40k1 repos~839Automated safety check: PassMIT
Relsa Severity AssessmentK-Dense-AI/scientific-agent-skills48k1 repos~5.2kAutomated safety check: NotesMIT
Claude Code Skill Assessmentluongnv89/claude-howto42k—~5.5kAutomated safety check: PassMIT
Conducting Cyber Risk Assessment With Nist 800 30mukul975/Anthropic-Cybersecurity-Skills34k—~2.5kAutomated safety check: PassApache-2.0
Complexity Cutssickn33/agentic-awesome-skills47k1 repos~3.8kAutomated safety check: PassApache-2.0

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Questions about Assess Eip

What does Assess Eip do?

Assess an EIP's implementation complexity and scope. An agent skill from ethereum/execution-specs. Assess Eip is an agent skill from ethereum/execution-specs. Assess an EIP's implementation complexity and scope.

How do I install Assess Eip in Claude Code?

Run `npx skills add ethereum/execution-specs --skill assess-eip -a claude-code`. Or copy the skill folder (.agents/skills/assess-eip in ethereum/execution-specs) into .claude/skills/assess-eip in your project. Claude Code loads it when a task matches its description.

How do I install Assess Eip in Codex?

Run `npx skills add ethereum/execution-specs --skill assess-eip -a codex`. Or copy the skill folder (.agents/skills/assess-eip in ethereum/execution-specs) into .agents/skills/assess-eip in your project. Codex loads it when a task matches its description.

Can I use Assess Eip in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ethereum/execution-specs --skill assess-eip -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/assess-eip, .gemini/skills/assess-eip, .github/skills/assess-eip and .opencode/skills/assess-eip in your project.

What does Assess Eip need to run?

SKILL.md names no scripts, command-line tools or credentials: Assess Eip is instructions for the agent only.

Does Assess Eip access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Assess Eip safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Assess Eip use?

Assess Eip is published under the CC0-1.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Assess Eip use?

About 535 tokens (SKILL.md is roughly 2.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Assess Eip?

Skills that share tags, products or a category with Assess Eip: Acreadiness Assess (github/awesome-copilot, 40k stars), Relsa Severity Assessment (K-Dense-AI/scientific-agent-skills, 48k stars), Claude Code Skill Assessment (luongnv89/claude-howto, 42k stars) and Conducting Cyber Risk Assessment With Nist 800 30 (mukul975/Anthropic-Cybersecurity-Skills, 34k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Assess Eip?

ethereum (a GitHub organization) maintains it in ethereum/execution-specs, which has 1,195 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on October 7, 2026.

Source: ethereum/execution-specs on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.